EP1787723B1 - Cartouche centrifuge - Google Patents

Cartouche centrifuge Download PDF

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Publication number
EP1787723B1
EP1787723B1 EP06121118.1A EP06121118A EP1787723B1 EP 1787723 B1 EP1787723 B1 EP 1787723B1 EP 06121118 A EP06121118 A EP 06121118A EP 1787723 B1 EP1787723 B1 EP 1787723B1
Authority
EP
European Patent Office
Prior art keywords
centrifuge
cartridge
sub
accordance
drum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP06121118.1A
Other languages
German (de)
English (en)
Other versions
EP1787723A1 (fr
Inventor
Gernot Busch
Sandro M.O.L. Schneider
Sebastian Stahl
Werner Prof. Dr. Stahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferrum AG
Original Assignee
Ferrum AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ferrum AG filed Critical Ferrum AG
Priority to EP06121118.1A priority Critical patent/EP1787723B1/fr
Publication of EP1787723A1 publication Critical patent/EP1787723A1/fr
Application granted granted Critical
Publication of EP1787723B1 publication Critical patent/EP1787723B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
    • B04B3/04—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/08—Rotary bowls
    • B04B7/12—Inserts, e.g. armouring plates
    • B04B7/16—Sieves or filters

Definitions

  • the invention relates to a centrifuge cartridge, as well as a centrifuge with a centrifuge cartridge according to the preamble of claims 1 and 12.
  • centrifuges in various embodiments are widely used and are used in a variety of fields.
  • a known centrifuge is for example in the US 4,427,406 A already described.
  • discontinuously operating centrifuges such as centrifugal peeler preferably used, while especially when continuously large amounts of a solid-liquid mixture to be separated, continuously operating pusher centrifuges are advantageously used.
  • decanter centrifuges which are on the market in various embodiments and are used for a wide variety of purposes, are of great economic importance.
  • centrifuges have in common that a solid-liquid mixture, for example, a suspension or a moist salt or salt mixture, for example, through an inlet pipe via a mixture distributor of a rapidly rotating drum, which may be configured, for example, as a filter, is supplied, so that on Because of the centrifugal forces acting the liquid phase is excreted through the filter screen, while inside the drum wall, a solid cake is deposited.
  • a solid-liquid mixture for example, a suspension or a moist salt or salt mixture
  • a mixture distributor of a rapidly rotating drum which may be configured, for example, as a filter
  • decanter centrifuge also often simply referred to as a "decanter”.
  • the rotor of a decanter centrifuge consists of a solid bowl drum with a cylindrical and conical part and a screw body mounted in it. Both run at high speed, the screw has a relatively small rotational difference from the drum. This rotation difference serves to transport the sedimented solid from the solid shell drum. Due to the density difference between the denser solid and the less dense liquid, the solid sediments onto the inner wall of the drum.
  • the clarifying suspension liquid flows in the channels formed by the screw blades spirally in the direction of an overflow weir, also called Dekanter infrastructure, at the end of the drum and there decanted into the surrounding liquid housing over.
  • Tubular centrifuges a type of centrifuge to be subsumed under the term "separators" are usually suspended vertically and consist essentially of a small diameter drum.
  • the axial extent of the tube drum is usually a multiple of its diameter, ie these drums have large slenderness grades.
  • the spin fluid so the mixture to be separated, usually occurs in a free jet of down into the drum.
  • a baffle breaks the liquid jet, and radially standing sheets bring the blasting material to the angular velocity of the drum.
  • the separated liquid flows in a surface flow to the upper end of the drum, where it leaves them via an overflow weir. After a maximum amount of solid cake has settled in the drum, the tube centrifuge is stopped and the solid cake removed.
  • each type of centrifuge has very special advantages and disadvantages of a fundamental nature and that each type of centrifuge is optimized for very specific tasks and less suitable for other tasks, in particular when processing particularly sensitive substances, such as during processing highly pure pharmaceutical, cosmetic or chemical products, often in all types of centrifuge the general problem that after completion of a dehumidification process by the centrifuge, the centrifuge are repeatedly cleaned consuming In order to comply with the necessary hygienic standards, which is very expensive, ie in particular time-consuming, and thus expensive.
  • centrifuged and dehumidified must be without contamination or even mixture of successively centrifuged substances may occur.
  • centrifuge drums are usually made of very high quality materials that can be attacked and damaged by such aggressive suspensions. This often entails time-consuming and expensive repair work on the high-quality centrifuge drums, which in the worst case even have to be completely replaced.
  • the object of the invention is therefore to propose a device with which these known from the prior art disadvantages are largely overcome.
  • the invention thus relates to a centrifuge cartridge for a centrifuge for separating a mixture into a solids cake and into a liquid phase, wherein the centrifuge cartridge is rotatably mounted in the installed state about a rotation axis of the centrifuge, the centrifuge cartridge being detachably installable in the centrifuge, in particular in a centrifuge drum of the centrifuge is.
  • a sedimentation chamber is provided in the centrifuge cartridge, and the sedimentation chamber is formed by a decanter disc.
  • the decanter disc is formed with a discharge opening and / or with a discharge opening for discharging the liquid phase.
  • a centrifuge cartridge which is detachably connectable to the centrifuge, that is, for example, detachably installable in a centrifuge drum of a conventional centrifuge. That is, the centrifuge cartridge is a self-contained body that is not fixed, but releasably connected to the rotor or the drum of the centrifuge.
  • the centrifuge cartridge can be detachably connected to the rotor and / or the centrifuge drum of a centrifuge, the centrifuge cartridge is in principle suitable for installation in virtually all known types of centrifuge, regardless of whether vertically or horizontally mounted centrifuge, continuously or discontinuously operating centrifuge, such as separator Special centrifuge centrifuge, or else in centrifugal centrifuges, decanter centrifuges, sliding centrifuges or oscillating centrifuges, the centrifuge cartridge according to the present invention can be advantageously installed. Even in a pusher centrifuge can, for example, after deactivation or disassembly of the pusher tray or other pushers, the inventive centrifuge cartridge in useful cases and used for a very special application beneficial.
  • the centrifuge cartridge of the present invention can be installed particularly advantageously in tube centrifuges, since the necessary conversion work or adaptations are the least costly here compared to other centrifuges, such as, for example, a peeler centrifuge.
  • the centrifuge cartridge can be used particularly advantageous not only in a tube centrifuge.
  • centrifuge cartridge according to the invention Another extremely significant advantage of the centrifuge cartridge according to the invention is exemplified below for all types of centrifuge using the example of a tube centrifuge. A hitherto, especially in the tube centrifuge, but not only in this, only unsatisfactorily solved problem is the solids discharge.
  • Carr-centrifuge allows, within certain limits, an automatic discharge of solids
  • particularly sensitive substances such as, for example, highly pure pharmaceutical, cosmetic or chemical products, among others the highest hygienic Requirements are subject to, after completion of a dehumidifying process of the products in the centrifuge, the centrifuge must be cleaned again and again consuming to comply with the aforementioned hygienic standards, which is very expensive, ie especially time-consuming, and thus extremely expensive.
  • an assignment of the reservoir from which a section of the centrifuge was fed not clearly possible (keyword "batch identification").
  • centrifuged and dehumidified without fouling of successively centrifuged substances must be feared, without the centrifuge, or the drum or the Rotor would have to be cleaned in between.
  • centrifuge cartridge according to the invention also resolves the problems which arise in the processing of more or less highly abrasive or, for example, physically and / or chemically aggressive suspensions, elegantly and in a simple and highly efficient manner.
  • the centrifuge drums which, as already mentioned, are usually made of very high-quality materials, no longer come into direct contact with such aggressive suspensions and are therefore no longer attacked and damaged by them.
  • a centrifuge cartridge according to the invention can thus also be used particularly advantageously as a "wear-protection cartridge". This eliminates costly and expensive repair work on the high-quality centrifuge drums.
  • the centrifuge cartridge itself according to the invention can be made, for example, of inferior materials, so that an exchange of a damaged centrifuge cartridge is also efficient and justifiable from an economic point of view.
  • centrifuge cartridge according to the invention is not limited to a specific type of centrifuge, which not least greatly increases the flexibility and economy of an existing centrifugal machinery.
  • the detachable installation of a centrifuge cartridge according to the invention in the centrifuge can be provided in any suitable manner be, which allows easy installation and removal of the centrifuge cartridge.
  • support bolts are provided in the centrifuge, in particular on the centrifuge drum, which are designed and arranged in such a way that a centrifuge cartridge according to the invention can be placed accurately and supported by the support bolts in the drum, without further fastening means must be provided for attachment.
  • easily releasable securing means such as screws or nuts, such as thumbscrews or wing nuts or other easily removable screws and / or nuts may be provided to safely and releasably install the centrifuge cartridge in the centrifuge.
  • easily releasable quick-release fasteners such as snaps
  • a releasable coupling device such as an eccentric, a bayonet or screw, preferably, but not necessary, in conjunction with the aforementioned support bolts, in the centrifuge or the Centrifuge drum is installable. It is understood that all, or a part of the aforementioned means, or other suitable means not mentioned here, can be suitably provided both on the centrifuge itself and on the centrifuge cartridge.
  • the change of the cartridge is manually and / or semi-automatically and / or fully automatic executable. All cartridges can be changed together or individual cartridges can be changed separately.
  • centrifuge cartridge according to the invention in the centrifuge is of secondary importance. It only has to be ensured that the centrifuge cartridge can be connected to the centrifuge or the centrifuge drum in a simple manner. Of course, how this can be done in detail also depends on the particular type of centrifuge in which the centrifuge cartridge according to the invention is to be installed, and of course this is how it should be done done to ensure safe operation of the centrifuge with centrifuge cartridge. Incidentally, the expert knows how to install the centrifuge cartridge safely, reliably and releasably in a specific centrifuge in the specific case.
  • the centrifuge cartridge is a sub-cartridge. That is, at least two sub-cartridges are provided in a rotor or in a drum of a conventional centrifuge, for example in a tube centrifuge, which may be the same or different in construction and whose interiors may either be in communication with each other, or can also be isolated from each other, so that during a Zentrifugiervorgangs no material from one sub-cartridge can get into the other.
  • centrifuge cartridge according to the invention and / or a sub-cartridge itself again comprises one or more sub-cartridges, so that there is a nested arrangement of centrifuge cartridges and / or sub-cartridges.
  • one or the other variant may be advantageous.
  • the input already mentioned "towing” is not only a known problem with tube or decanter centrifuges.
  • the outflowing liquid for example, in a tube centrifuge in a conventional manner via a decanter disc from the drum of the Centrifuge is discharged, more and more entrains sedimenting material and thus removed from the drum before it can sediment as a solid cake. In some cases even sedimented solid matter that has already been deposited on the surface of the sediment can be dragged away again due to the high flow velocity.
  • This effect of dragging described above means that in practice the centrifuge must be switched off prematurely even at a filling level of the centrifuge drum of about 60%, because the efficiency in the sedimentation of the mixture has decreased to an intolerable level. In this case, this condition can be achieved in certain cases even at a degree of filling of less than 60%, with 60% is a characteristic value, for example, for biotechnological products.
  • sub-cartridges arranged one behind the other in the rotor direction is particularly suitable, wherein, for example, one or both end faces of each sub-cartridge are formed by a decanter, so that the interiors of two adjacent sub-cartridges communicate with each other via the openings of adjacent decanter disks stand.
  • the drag effect described above can be almost completely suppressed and, on the other hand, in two different sub-cartridges, solid cake of e.g. sedimented different grain distribution, i. a classification can take place and / or solid cake of different degrees of dehumidification or of different consistency can be isolated in two different sub-cartridges, so that after completion of a centrifuging process, the sub-cartridges can be removed individually from the rotor of the centrifuge and thus automatically separated, in the individual Sub-cartridges are solid cake of various consistency, as needed for further processing steps.
  • solid cake of e.g. sedimented different grain distribution i. a classification can take place and / or solid cake of different degrees of dehumidification or of different consistency can be isolated in two different sub-cartridges, so that after completion of a centrifuging process, the sub-cartridges can be removed individually from the rotor of the centrifuge and thus automatically separated, in the individual Sub-cartridges are solid
  • the consistency of the solid cake in particular their different particle size distribution and / or their different degree of dehumidification by selecting various parameters, such as the geometry of the sub-cartridges and / or the geometry of the configured as Dekanterimin end faces and / or the feed rate of the mixture to be separated and / or other parameters specifically adjustable.
  • the interiors of two different sub-cartridges are isolated from each other, for example by the end faces are designed as closed end surfaces, so that no material can pass from one sub-cartridge to another.
  • This is for example particularly advantageous if in the same centrifuge, in the same centrifuging different substances that must not be mixed, to be processed simultaneously.
  • At least two sedimentation chambers are provided in the centrifuge cartridge, which are arranged axially one behind the other with respect to the axis of rotation.
  • the at least two sedimentation chambers can be designed, for example, in the form of decanter disks, analogously to the examples described above, so that the interiors of two different sedimentation chambers communicate with one another.
  • the sedimentation chambers can also be separated from one another by separating means, for example by separating plates, so that no material can pass from one sedimentation chamber of a centrifuge cartridge into another sedimentation chamber of the same centrifuge cartridge.
  • both two or more connected sedimentation chambers, as well as one or more closed Sedimantations hampern can be provided simultaneously in one and the same centrifuge cartridge. It is also clear that for certain applications a sedimentation chamber and / or a centrifuge cartridge and / or a sub-cartridge may be closed at one end and may be open at the second end, for example by providing a decanter disc at the second end. It is also clear that a sub-cartridge can also have two or more sedimentation chambers.
  • the sedimentation chamber is formed by a decanter disk with a discharge opening and / or discharge recess for discharging the liquid phase.
  • Decanter discs per se and their specific embodiments are well known to those skilled in the art and therefore need not be described in detail at this point.
  • decanter discs per se and their specific embodiments are well known to those skilled in the art and therefore need not be described in detail at this point.
  • FIGS. 4a to 4c For the discussion of possible special variants of decanter discs is in particular the description of the FIGS. 4a to 4c directed.
  • the sedimentation chamber itself can be subdivided further into at least two portioning chambers, wherein the sedimentation chamber can be designed in particular in the form of a honeycomb structure.
  • the portions formed can have different degrees of dehumidification and / or a specifiable consistency and / or different grain distributions.
  • a first sedimentation chamber may be larger than a second sedimentation chamber and / or a first portioning chamber may be larger than a second portioning chamber.
  • the size of a sedimentation chamber or the interior of a centrifuge cartridge and / or a sub-cartridge can be influenced not only by varying the axial extent, ie the length in the axial direction, but of course also the diameter or radius, in particular the inner diameter is determined , Therefore, it is possible that a first radius of a first sedimentation chamber and / or a first sub-cartridge is greater than a second radius of a second sedimentation chamber and / or a second sub-cartridge.
  • Such arrangements are particularly suitable, as one skilled in the art knows, for classifying a mixture, that is for separating the mixture into various solid cake, which differ, for example, by the size and / or weight of the sedimented particles.
  • the centrifuge cartridge and / or sub-cartridge comprises, in a manner known per se, a filter screen on a radial peripheral surface for discharging the liquid phase.
  • the centrifuge cartridge and / or sub-cartridge can be made of metal and / or of a plastic, in particular of a plastic injection molding and / or of a composite material.
  • an inner wall of the centrifuge cartridge and / or the sub-cartridge and / or the centrifuge drum itself be lined , in particular with a plastic, in particular be lined with a hygienic plastic.
  • a means for sealing can be provided at a cartridge opening of the centrifuge cartridge and / or the sub-cartridge and / or the centrifuge cartridge and / or the sub-cartridge can be configured as a sealable container.
  • the means for sealing may be, for example, a lid of a suitable material, a plastic foil or other suitable sealing means.
  • a product-compatible liquid is also conceivable as a sealant, which is applied to the sedimented solids cake after completion of the sedimentation process and then hardened, for example, in the form of a sealing layer.
  • the liquid sealant is, for example, on the sedimented solid cake, ie on the product, preferably still during the course of Centrifuge abandoned, so that the centrifuge cartridge or the sub-cartridge is already hermetically sealed when the centrifuge.
  • the seal could also be realized via a central pin or similar devices by means of which the cartridge is then removed, for example. These devices can then seal together not only individual but also several cartridges, which in turn can also be removed and / or installed individually or together. Designs with a snap or click system are possible in addition to other solutions as special embodiments.
  • a sealed centrifuge cartridge and / or sub-cartridge is particularly advantageous if the solid cake formed in the centrifuge is subject to extreme purity criteria or highest hygiene is required.
  • the sealed cartridge after dehumidification, ie after completion of compaction or centrifugation of the mixture can be removed from the centrifuge without the centrifuge cartridge must be opened and without the solid cake is exposed to harmful environmental influences.
  • the sealed centrifuge cartridge may then be sent to another production step, or returned directly to the sealed container to a customer who has commissioned the mixture for dehumidification in the centrifuge, without having to remove a centrifuge from the centrifuge or, for example, during transport Contamination of the solids cake is possible.
  • the sealing of the centrifuge cartridge and / or the sub-cartridge can be done directly after filling with mixture to be dehumidified, for example, by serving as a filling opening faces are sealed, for example, with a lid or a foil and then used only for dehumidifying in the centrifuge, wherein suitable means, which are known per se to those skilled in the art, are provided to remove the supernatant liquid.
  • suitable means which are known per se to those skilled in the art, are provided to remove the supernatant liquid.
  • centrifuge cartridge and / or the sub-cartridge can be sealed properly only after completion of a dehumidification process in the centrifuge.
  • the invention further relates to a centrifuge, in particular a vertically or horizontally mounted centrifuge, in particular a discontinuously operating centrifuge, in particular a separator, preferably tube centrifuge, peeler centrifuge, and / or a continuously operating centrifuge, in particular decanter centrifuge, sliding centrifuge, pusher centrifuge or a vibrating centrifuge with a Centrifuge cartridge and / or a sub-cartridge as previously described in detail.
  • a centrifuge in particular a vertically or horizontally mounted centrifuge, in particular a discontinuously operating centrifuge, in particular a separator, preferably tube centrifuge, peeler centrifuge, and / or a continuously operating centrifuge, in particular decanter centrifuge, sliding centrifuge, pusher centrifuge or a vibrating centrifuge with a Centrifuge cartridge and / or a sub-cartridge as previously described in detail.
  • FIG. 3 a shows a schematic representation of a centrifuge with a centrifuge cartridge according to the invention, which is referred to below in reference numeral 1.
  • the centrifuge 2 comprises, in a manner known per se, a centrifuge drum 21 which is rotatably mounted about a rotation axis 6, driven by a rotary drive 2000, in a housing 200 and into which a mixture 3 to be separated is introduced into the centrifuge drum 21 via an inlet pipe 213 ,
  • the centrifuge drum 21 which in the present example has a sieve 211 for discharging a liquid phase 5
  • a centrifuge cartridge 1 according to the invention is detachably installed.
  • a mixture 3 to be separated is introduced via an inlet pipe 213 into the centrifuge drum 21 in a manner known per se with rapid rotation, wherein the high centrifugal forces which prevail due to the rapid rotation of the centrifuge drum 21, on the inner wall of the centrifuge drum 21st deposits a solid cake 4, wherein the liquid phase 5 is discharged via the filter screen 211 into the housing 200 of the centrifuge 2 and is removed via the outflow 214 from the centrifuge housing 200.
  • the centrifuge cartridge 1 is releasably and reliably detachable via support means 212, which in the present case are configured as support bolts 212 Centrifuge drum 21 supported.
  • support means 212 which are provided on the rear side of the centrifuge drum 21 facing the rotary drive 2000 are inserted in a corresponding recess on the centrifuge drum 21 in such a manner that the rotational movement of the centrifuge drum 21 can be transmitted reliably and vibration-free to the centrifuge cartridge 1.
  • the support pins 212 which are shown at the bottom and at the top in the centrifuge drum 21, support the centrifuge cartridge 1 in the radial direction in the centrifuge drum 21, so that on the one hand an absolutely secure mounting of the centrifuge cartridge 1 in the centrifuge drum 21 is ensured and on the other hand the centrifuge cartridge 21 is easily detachably mounted or can be dismantled.
  • Fig. 1 a is a schematic representation of a centrifuge cartridge 1, which comprises a stable self-supporting drum shell 101. It is understood that the centrifuge cartridge 1, and in particular also a sub-cartridge 100, can have a more or less non-self-supporting drum shell 101, which can of course be supported on its peripheral surface via a plurality of support bolts 212, or even over the entire Surface of the drum shell 101 may be supported in the centrifuge drum 21. In this case, the radial support pins 212 may be missing.
  • Fig. 1b is a special embodiment of a centrifuge cartridge 1 without drum shell 101 shown.
  • the centrifuge cartridge 1 of Fig. 1 b essentially comprises a cartridge axis 111 which, for example, coincides with the axis of rotation 6 of the centrifuge 2 and on which one or more decanter discs 8 are arranged, so that in the installed state sedimentation chambers 7 are formed in the centrifuge drum 21, in which, in the operating state of the centrifuge 2 Solid cake 4 is sedimentable.
  • the centrifuge cartridge 1 without drum casing 101 is arranged in such a way in the centrifuge drum 21 that it rotates with this.
  • anchoring means may be provided for non-rotatable coupling of the centrifuge cartridge 1 to the centrifuge drum 21 can thereby appropriate.
  • This particularly simple embodiment of a centrifuge cartridge 1 according to the invention is particularly easy to install or remove in the centrifuge drum 21 and in particular allows a very simple emptying of the centrifuge drum 1 after the completion of a centrifuging operation, as indicated by the double arrow in FIG Fig. 1b indicated, the centrifuge cartridge 1 can be easily pulled out along the cartridge axis from the centrifuge drum 21, wherein the sedimented solid cake 4 is simultaneously conveyed out of the centrifuge drum 21 by the decanter discs 8.
  • centrifuge cartridge 1 without drum shell 101 may be, ie that the centrifuge cartridge 1 without drum shell 101 may not only be arranged directly in a centrifuge drum 21, but may of course also be provided in another centrifuge cartridge 1 or even in a sub-cartridge 100.
  • Fig. 2a is another embodiment according to Fig. 1 a, wherein in the centrifuge 2, two sub-cartridges 100, with respect to the axis of rotation 6 in the axial direction are arranged one behind the other.
  • the support means 212 and other known components of the centrifuge 2 was in Fig. 2a omitted for the sake of clarity.
  • the various sub-cartridges 100 may have different functions in special cases. Thus, e.g. in a first sub-cartridge 100 a sedimented solid cake 4 are washed or watered and in a second not and vice versa. Quite generally, it is thus possible that in one and the same centrifuge drum 21 and / or centrifuge cartridge 1 and / or sub-cartridge 100 a plurality of sub-cartridges 100 are provided, in which different process steps are feasible, or fulfill different functions during centrifugation.
  • the sub-cartridges 100 of Fig. 2a are configured as open on both sides sub-cartridges 100, so that mixture, for example, from the representation of the right sub-cartridge into the left sub-cartridge can be transferred.
  • the effect of drag described in detail above is minimized and the yield of solids cake per centrifugation or the centrifugation efficiency by the chamber formation by means of two sub-cartridges 100 considerably increased. This positive effect will be illustrated in particular by the schematic diagram of FIG. 3b explained in more detail below.
  • both the sub-cartridges 100 and the centrifuge cartridges 1 can be configured in a manner known per se as a solid-shell cartridge 1, 100 and / or as a filtering cartridge 1, 100 and / or as a cross-filtering cartridge 1, 100 or otherwise.
  • the end faces of the cartridges 1, 100 also filtering, that is, as already mentioned, be designed as cross-filtering cartridges 1, 100.
  • a drainage path D are closed with a closure mechanism V, so that the cross-filtration is stopped in a first process step.
  • Fig. 2b is a section of a second embodiment according to Fig. 2a shown schematically.
  • the centrifuge drum 21 which may also be a centrifuge cartridge 1 or a sub-cartridge 100
  • two pairs of sub-cartridges 100 are arranged, each for exchanging mixture 3 of one of the sub-cartridges 1 of one pair into the adjacent sub-cartridge 100 of the same pair, communicate with each other.
  • the centrifuge drum 21 which may also be a centrifuge cartridge 1 or a sub-cartridge 100
  • two pairs of sub-cartridges 100 are arranged, each for exchanging mixture 3 of one of the sub-cartridges 1 of one pair into the adjacent sub-cartridge 100 of the same pair, communicate with each other.
  • Fig. 3 not only pairs of two sub-cartridges 100 can be formed, but also cascades of more than two sub-cartridges 100 are formed.
  • Fig. 2b The special advantage of the arrangement of Fig. 2b is that at least two different or the same mixtures 31, 32 can be dehumidified simultaneously in one and the same centrifuge 2, without the both mixtures 31, 32 or the sedimented solid cake 41, 42 come into contact with each other.
  • the at least two different mixtures 31, 32 are introduced through an inlet pipe 213 into the centrifuge 2, wherein the inlet pipe 213 is configured such that the mixtures 31, 32 do not come into contact with each other in the inlet pipe.
  • the inlet pipe is designed at least double-walled or a plurality of separate sub-pipes 2131, 2132 are provided.
  • the inlet pipe is designed at least double-walled or a plurality of separate sub-pipes 2131, 2132 are provided.
  • the inlet pipe is designed at least double-walled or a plurality of separate sub-pipes 2131, 2132 are provided.
  • the mixtures 31, 32 are introduced via the partial tubes 2131 and 2132 into the left sub-cartridge 100 of a pair of sub-cartridges 100 as shown.
  • a portion of the respective mixture 31, 32 as solid cake 41, 42 sediment in each left sub-cartridge 100 of a pair of sub-cartridges 100, while another part of the respective mixture 31, 32 in each right sub-cartridge 100 of a pair of sub-cartridges 100 is transported on.
  • FIG. 3a an embodiment of an inventive centrifuge cartridge 1 and a sub-cartridge 100 is shown with Dekanteretheretherether 8, so that the interior of the centrifuge cartridge 1 and the sub-cartridge 100 in the specific example of Fig. 3a is divided into three separation chambers 7.
  • This embodiment is, as already mentioned above and by the Fig. 3b will be explained in more detail, on the one hand particularly suitable for minimizing the harmful drag, because the additional decanter discs 8 in the interior of the centrifuge cartridge 1, 100, the uncontrolled flushing not yet sedimented particles is prevented.
  • solid cake 4 of different degrees of dehumidification and / or of different consistency and / or different composition for example solid cake of different particle size, sediment in the different sedimentation chambers.
  • FIG. 3b demonstrates in an impressive way, inter alia, the suppression of drag, and thereby significantly increased efficiency of sedimentation of the solid cake 4, and the clearly improved yield of solid cake 4 by a centrifuge cartridge according to Fig. 3 ,
  • the graphic of the FIG. 3b shows a schematic representation of the total amount of sedimented solid cake 4 as a function of time t, in which the centrifuging takes place.
  • the curve 1000 represents depending on the time t, the yield A of solid cake 4, which is achieved in a centrifuge cartridge 1, 100, which is made in one piece, that does not have separate Sedimation chambers 7, or in other words, only from a single Sedimantationshunt 7 exists.
  • the curve 700 shows in an analogous manner, the yield A of solid cake 4, with a centrifuge cartridge 1, 100 according to Fig. 3a is accessible, ie with a centrifuge cartridge 1, 100 which has more than one sedimentation chamber 7.
  • Fig. 4a to Fig. 4b three different embodiments of per se known decanter discs 8 are shown, which are advantageously used in a centrifuge cartridge 1, 100.
  • the decanter discs 8 of Fig. 4a to Fig. 4b For example, as in Fig. 3a shown schematically, in a novel centrifuge cartridge 1, 100 with respect to the axis of rotation 6 of a centrifuge 2 are arranged one behind the other. The decanter disc 8 is then arranged rotatably about the axis 6 in the centrifuge cartridge, so that in the operating condition of the centrifuge 2, the liquid phase 5 to be discharged can be decanted over the edge 83 of the decanter disc 8.
  • openings 81 may be provided in the decanter disk 8, or may be as shown in FIGS Fig. 4b and 4c shown schematically, recesses 82 may be provided, which, as in Fig. 4c shown, for example, can be realized by teeth.
  • a centrifuge cartridge 1, 100 in the axial direction a plurality Dekanterin 8 are arranged one behind the other, it may be advantageous to arrange the Dekanterin 8 in such a way that the recesses 82 or the openings 8 of two different Dekanterin 8 are arranged to each other, that the cross-sectional areas of the openings 8 and / or the recesses 82 overlap seen in the axial direction, so that in the axial direction, a kind of continuous "channel" through the openings and / or recesses 82 is formed.
  • the decanter discs 8 may be more advantageous to arrange the decanter discs 8 to one another such that an opening 81 and / or a recess 82 of a first decanter disc 8 is covered by a second decanter disc 8, so that it does not form a "channel" through it overlapping cross-sectional areas of the openings 81 and / or the recesses 82 comes.
  • devices 800 such as blades 800 or ribs 800 or other measures 800 may be provided on the decanter discs 8 or in addition to the decanter discs 8, which convey the fluid away from the surface in the radial direction.
  • Such devices 800 or measures 800 such as, for example, immersion disks 800 ("dip-weir"), are known per se Fig. 4d a corresponding arrangement with two sub-cartridges 100 shown schematically.
  • the mixture 3 is introduced via devices not shown in detail in the left sub-cartridge 100 as shown, wherein a portion of the solid suspended in the mixture 3 sedimented in the left sub-cartridge 100 as a solid cake 4.
  • Another part of the mixture 3 then passes via an end face of the left and / or right sub-cartridge 100 into the right-hand sub-cartridge 100 as shown.
  • the mixture 3 passing into the right-hand sub-cartridge 100 is first radially outwardly in a manner known per se by the overflow rib 800 forced towards higher peripheral speeds of the centrifuge 2, whereby the sedimentation process in the right sub-cartridge 100 is significantly improved and the effect of drag is significantly reduced.
  • decanter discs 8 or on the overflow ribs 800 are merely exemplary.
  • a variety of other embodiments of decanter discs 8 and overflow ribs 800, as well as their arrangement in a rotor chamber of a centrifuge well known, of course, all, in all suitable combinations, advantageously in a novel centrifuge cartridge 1, 100 are used.
  • FIG. 5a and 5b two embodiments of a centrifuge cartridge 1, and a sub-cartridge 100 are shown schematically containing the portioning chambers 9. That is, eg the portioning chamber 7 is further subdivided into portioning chambers 9 which, as in FIG Fig. 5a represented, for example, a rectangular geometry, in particular may be formed in the form of a honeycomb structure or else as in Fig. 5b represented, may have a different geometry.
  • the portioning chambers 9 in the example of Fig. 5b designed as removable tubes, ie the Portion michshuntn 9 are detachably installed in the centrifuge cartridge 1, 100.
  • the automatic portioning of the solid cake in predetermined quantities in the portioning tubes 9 designed as portioning chambers 9 is possible during centrifuging, which can then be removed individually and comfortably, portioned automatically already in a predetermined amount, can be supplied to a further processing step, or finished a customer can be made available in portions.
  • the Fig. 6a Finally shows an arrangement for classifying, which is realized in the present case but by individually removable sub-cartridges 100.
  • Fig. 6a By way of example, three sub-cartridges 100 are shown, which have different inner diameters R1, R2, and R3, so that in a manner known per se with the arrangement of FIGS Fig. 6a a mixture 3 to be separated can be classified.
  • Fig. 6b are finally shown as a further variant sub-cartridges 100 for classifying with different outer diameter D1, D2, D3 schematically.
  • the different outer diameters D1, D2, D3 of the sub-cartridges 100 are realized in the present example by providing a dead space 101 in each case in the radial direction, which has a sedimentation surface 102 in the direction of the axis of rotation 6 on which the solid cake 4 sediments.
  • the mixture to be separated 3 are classified.
  • each individually removable sub-cartridges 100 automatically in different, each individually removable sub-cartridges 100, which of course considerably simplifies the further processing of the solid cake, or makes possible in certain cases at all. It is clear that, of course, more than three sub-cartridges 100 with the same or different outside diameters can be advantageously provided.

Landscapes

  • Centrifugal Separators (AREA)

Claims (12)

  1. Cartouche centrifuge pour une centrifugeuse (2) destinée à la séparation d'un mélange (3) en un gâteau de matière solide (4) et en une phase liquide (5), la cartouche centrifuge (1) pouvant être installée de façon amovible dans la centrifugeuse, en particulier dans un tambour centrifuge de la centrifugeuse, la cartouche centrifuge (1) étant, dans l'état monté, supportée de façon à pouvoir tourner autour d'un axe de rotation de la centrifugeuse, une chambre de sédimentation (7) étant prévue dans la cartouche centrifuge (1), et la chambre de sédimentation (7) étant formée par un disque de décantation (8), caractérisée en ce que le disque de décantation (8) est formé avec un orifice d'évacuation (81) et/ou un évidement d'évacuation (82) pour l'évacuation de la phase liquide (5).
  2. Cartouche centrifuge selon la revendication 1, la cartouche centrifuge (1) comprenant une enveloppe de tambour (101) autoportante, ou une enveloppe de tambour (101) non autoportante.
  3. Cartouche centrifuge selon l'une des revendications précédentes, la cartouche centrifuge (1) étant une sous-cartouche (100).
  4. Cartouche centrifuge selon l'une des revendications précédentes, au moins deux chambres de sédimentation (7) étant prévues dans la cartouche centrifuge (1), lesquelles sont disposées l'une derrière l'autre axialement par rapport à l'axe de rotation (6).
  5. Cartouche centrifuge selon l'une des revendications précédentes, la chambre de sédimentation (7) étant subdivisée en au moins deux chambres de division en portions (9), la chambre de sédimentation (7) étant constituée en particulier sous forme de structure en nid d'abeilles.
  6. Cartouche centrifuge selon l'une des revendications précédentes, une première chambre de sédimentation (71) étant plus grande qu'une deuxième chambre de sédimentation (72), et/ou une première chambre de division en portions (9) étant plus grande qu'une deuxième chambre de division en portions (9).
  7. Cartouche centrifuge selon l'une des revendications précédentes, un premier rayon (R1) de la première chambre de sédimentation (71) étant plus grand qu'un deuxième rayon (R2) de la deuxième chambre de sédimentation (72).
  8. Cartouche centrifuge selon l'une des revendications précédentes, un tamis filtrant (10) étant prévu sur la cartouche centrifuge (1) et/ou sur la sous-cartouche (100).
  9. Cartouche centrifuge selon l'une des revendications précédentes, la cartouche centrifuge (1) et/ou la sous-cartouche (100) étant fabriquée en métal et/ou en matière plastique, en particulier en matière plastique moulée par injection et/ou en matériau composite.
  10. Cartouche centrifuge selon l'une des revendications précédentes, une paroi intérieure de la cartouche centrifuge (1) et/ou de la sous-cartouche et/ou du tambour centrifuge (21) étant revêtue, en particulier revêtue d'une matière plastique, notamment d'une matière plastique hygiénique.
  11. Cartouche centrifuge selon l'une des revendications précédentes, un moyen (12) de scellement étant prévu sur un orifice de cartouche (11) de la cartouche centrifuge (1) et/ou de la sous-cartouche (100), et/ou la cartouche centrifuge (1) et/ou la sous-cartouche (100) étant constituée en tant que récipient (1, 100) pouvant être scellé.
  12. Centrifugeuse, en particulier centrifugeuse (2) supportée verticalement ou horizontalement, fonctionnant de façon continue ou discontinue, notamment centrifugeuse tubulaire (2), centrifugeuse racleuse (2), décanteur centrifuge (2), centrifugeuse par glissement (2) ; centrifugeuse à poussoir (2) ou centrifugeuse à vibrations avec une cartouche centrifuge (1) selon l'une des revendications précédentes.
EP06121118.1A 2005-11-18 2006-09-22 Cartouche centrifuge Not-in-force EP1787723B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06121118.1A EP1787723B1 (fr) 2005-11-18 2006-09-22 Cartouche centrifuge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05405649 2005-11-18
EP06121118.1A EP1787723B1 (fr) 2005-11-18 2006-09-22 Cartouche centrifuge

Publications (2)

Publication Number Publication Date
EP1787723A1 EP1787723A1 (fr) 2007-05-23
EP1787723B1 true EP1787723B1 (fr) 2017-02-22

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Application Number Title Priority Date Filing Date
EP06121118.1A Not-in-force EP1787723B1 (fr) 2005-11-18 2006-09-22 Cartouche centrifuge

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EP (1) EP1787723B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113909004A (zh) * 2021-08-26 2022-01-11 江苏玖泰电力实业有限公司 一种具有自动收纳进料管功能的立式离心机

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2746877A1 (de) * 1977-10-19 1979-04-26 Messerschmitt Boelkow Blohm Schleudertrommel, insbesondere fuer eine zentrifuge
US4427406A (en) * 1982-03-22 1984-01-24 Beckman Instruments, Inc. Sectional shaped liner for a centrifuge rotor
DE4407515C1 (de) * 1994-03-07 1995-08-17 Krauss Maffei Ag Vorrichtung zum Einspannen eines Filtermittels in einer Zentrifugentrommel
DE19715661A1 (de) * 1997-04-16 1998-10-22 Mann & Hummel Filter Zentrifugenrotor
EP1268074B1 (fr) * 2000-04-03 2005-09-28 Mann + Hummel GmbH Centrifugeuse a surfaces de separation orientees axialement
US6652439B2 (en) * 2000-04-04 2003-11-25 Fleetguard, Inc. Disposable rotor shell with integral molded spiral vanes
EP1409104A2 (fr) * 2001-02-13 2004-04-21 Buddy Don Gray Systeme de reduction du mercure dentaire
DE10158705A1 (de) * 2001-11-29 2003-06-18 Krauss Maffei Process Technolo Vorrichtung zum Austrag eines Feststoffes aus einer Zentrifuge
DE10245013A1 (de) * 2002-09-20 2004-04-01 Heinkel Aktiengesellschaft Filterzentrifuge
DK200400388A (da) * 2004-03-09 2005-09-10 Alfa Laval Copenhagen As Centrifuge til separering af en tilfört væske omfattende en emulsion af to væskefaser med forskellige massefylder i en let væskefase og en tung væskefase

Non-Patent Citations (1)

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Title
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